hiv infection definition
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Terms, Definitions, and Calculations Used in CDC HIV Surveillance Publications Terms, Definitions, and Calculations. HIV infection is classified as stage 3 (AIDS) when the immune system of a person infected with HIV becomes severely compromised (measured by CD4 cell count) and⁄or the person becomes ill with an opportunistic infection.
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- Human Immunodeficiency Virus (HIV). Human Immunodeficiency Virus (HIV) is a retrovirus that causes Acquired Immunodeficiency Syndrome (AIDS) by infecting and damaging CD4 cells (also called T-helper cells) of the immune system leaving the body defenseless to numerous infections and health problems.
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- Noun. 1. HIV-infection by the human immunodeficiency virus. viral infection, virus infection-infection by a virus that is pathogenic to humans.
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HIV The human immunodeficiency virus (HIV) is a lentivirus (a subgroup of retrovirus) that causes HIV infection and acquired immunodeficiency syndrome (AIDS).AIDS is a condition in humans in which progressive failure of the immune system allows life-threatening opportunistic infections and cancers to thrive.Without treatment, average survival time after infection with HIV is estimated to be 9 to 11 years, depending on the HIV subtype.oth HIV-1 and HIV-2 are believed to have originated in non-human primates in West-central Africa, and are believed to have transferred to humans (a process known as zoonosis) in the early 20th Century.
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Connecticut State Department of Public Health The human immunodeficiency virus (HIV) is the virus that causes AIDS, or acquired immunodeficiency syndrome, a disease that causes the body to lose its natural protection against infection. The disease is one of the most devastating epidemics in modern history.
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acquired immunodeficiency syndrome Acquired immunodeficiency syndrome (AIDS) A group of diseases resulting from infection with the human immunodeficiency virus (HIV). A person infected with HIV gradually loses immune function, becoming less able to resist aliments and cancers, resulting in eventual death.
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HIV/AIDS HIV is the cause of the spectrum of disease known as HIV/AIDS. HIV is a retrovirus that primarily infects components of the human immune system such as CD4 + T cells, macrophages and dendritic cells.riminal transmission of HIV is the intentional or reckless infection of a person with the human immunodeficiency virus (HIV). Some countries or jurisdictions, including some areas of the United States, have laws that criminalize HIV transmission or exposure.
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HIV/AIDS: a definition HIV/AIDS: a definition. Acquired immune deficiency syndrome (AIDS) is the name of the fatal clinical condition that results from infection with the human immunodeficiency virus (HIV), which progressively damages the body's ability to protect itself from disease organisms.
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What are HIV and AIDS? What is HIV? HIV is a virus that attacks the immune system, which is our body’s natural defence against illness. The virus destroys a type of white blood cell in the immune system called a T-helper cell, and makes copies of itself inside these cells. T-helper cells are also referred to as CD4 cells. As HIV destroys more CD4 cells and makes more copies of itself, it gradually breaks down a person’s immune system. This means someone living with HIV, who is not receiving treatment, will find it harder and harder to fight off infections and diseases.
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What are HIV and AIDS? AIDS stands for acquired immune deficiency syndrome. AIDS is also referred to as advanced HIV infection or late-stage HIV. AIDS is a set of symptoms and illnesses that develop as a result of advanced HIV infection which has destroyed the immune system. Treatment for HIV means that more people are staying well, with fewer people developing AIDS.
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- Introduction. Acquired immunodeficiency syndrome (AIDS) is a chronic and potentially fatal disease of the immune system. It is caused by the human immunodeficiency virus (HIV), which attacks a specific type of white blood cell known as T-lymphocytes. These cells are measured in the blood as the CD4 count.
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Overview Acquired immunodeficiency syndrome (AIDS) is a chronic, potentially life-threatening condition caused by the human immunodeficiency virus (HIV). By damaging your immune system, HIV interferes with your body's ability to fight the organisms that cause disease. HIV is a sexually transmitted infection.
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STD's Acquired Immune deficiency syndrome (AIDS) 1  a syndrome caused by the human immunodeficiency virus (HIV) that renders immune cells ineffective, permitting opportunistic infections, malignancies, and neurologic diseases to develop; transmitted sexually or through contaminated blood. Chlamydia.
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HIV and AIDS HIV syndrome is a name for the early stage of HIV infection, when a person is first infected with HIV. After being infected with HIV, your body works hard to attack the virus. With your body fighting, the virus can't make as many copies of itself.
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- Opportunistic infection: An infection that occurs because of a weakened immune system. Opportunistic infections are a particular danger for people with AIDS. The HIV virus itself does not cause death, but the opportunistic infections that occur because of its effect on the immune system can. See also opportunistic condition, opportunistic microorganism.
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- Opportunistic infections (OIs) are infections that occur more frequently and are more severe in individuals with weakened immune systems, including people with HIV.hen a person living with HIV gets certain infections (called opportunistic infections, or OIs), he or she will get a diagnosis of AIDS, the most serious stage of HIV infection. AIDS is also diagnosed if a type of blood cell that fights infection (known as CD4 cells) falls below a certain level in persons with HIV.
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- The human immunodeficiency virus (HIV) is a lentivirus (a subgroup of retrovirus) that causes HIV infection and acquired immunodeficiency syndrome (AIDS).nfection with HIV occurs by the transfer of blood, semen, vaginal fluid, pre-ejaculate, or breast milk. Within these bodily fluids, HIV is present as both free virus particles and virus within infected immune cells.
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- HIV (human immunodeficiency virus) is a virus that attacks the immune system, the body's natural defense system. Without a strong immune system, the body has trouble fighting off disease. Both the virus and the infection it causes are called HIV. White blood cells are an important part of the immune system.
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Comprehensive, up-to-date information on HIV/AIDS treatment and prevention from the University of California San Francisco Acute infection with HIV is often associated with a febrile illness and clinical evidence of systemic dissemination of virus to lymphoid tissue, the central nervous system, and other sites. High-level viral replication is reflected in high concentrations of virus in plasma and in lymphoid tissue.
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HIV/AIDS HIV infection; Infection – HIV; Human immunodeficiency virus; Acquired immune deficiency syndrome. Human immunodeficiency virus (HIV) causes HIV infection and AIDS. The virus attacks the immune system. As the immune system weakens, the body is vulnerable to life-threatening infections and cancers. Once a person has the virus, it stays inside the body for life.
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HIV/AIDS The human immunodeficiency virus (HIV) infects cells of the immune system, destroying or impairing their function. Infection with the virus results in progressive deterioration of the immune system, leading to immune deficiency. The immune system is considered deficient when it can no longer fulfil its role of fighting infection and disease.
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- HIV is a virus which is most commonly passed on by sexual contact. HIV attacks cells of the immune system. Untreated, the immune system weakens so that the body cannot defend against various bacteria, viruses and other germs. This is when AIDS (commonly now called late-stage HIV infection) develops. However, early detection and treatment with antiretroviral therapy (ART) means that people living with HIV can lead active, healthy lives. However, they may have side-effects from the treatment.
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About HIV/AIDS About HIV/AIDS. HIV is a virus spread through certain body fluids that attacks the body’s immune system, specifically the CD4 cells, often called T cells. Over time, HIV can destroy so many of these cells that the body can’t fight off infections and disease. These special cells help the immune system fight off infections.
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- Acquired immunodeficiency syndrome (AIDS) is a chronic and potentially fatal disease of the immune system. It is caused by the human immunodeficiency virus (HIV), which attacks a specific type of white blood cell known as T-lymphocytes. These cells are measured in the blood as the CD4 count.
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- HIV infection means a person has been infected with the Human Immunodeficiency Virus (HIV). HIV damages the body's immune system, the system that fights infections. Without the immune system's protection, the body is defenseless against serious and potentially life-threatening diseases.
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Signs and symptoms of HIV/AIDS Acute HIV infection, primary HIV infection or acute seroconversion syndrome) is the second stage of HIV infection. It occurs after the incubation stage, before the latency stage and the potential AIDS succeeding the latency stage.